Huawei Matepad 104 Custom Rom 2021 [best] -

for most users due to Huawei's restrictive hardware policies. The Bootloader Roadblock The primary obstacle to any custom ROM installation is the locked bootloader Official Support Ended:

It allows you to run a separate "Guest" Android OS that has the Google Play Store pre-installed and fully functional. huawei matepad 104 custom rom 2021